Weight Loss Appetite Study
Relation between appetite ratings before
and after a standard meal and estimates of daily energy intake in obese
and reduced obese individuals
Weight Loss Appetite Study Aim
To judge appetite ratings before and after a standard breakfast to estimates
of daily energy intake, before and after in weight loss obese men and
women.
Weight Loss Appetite Study Method
19 obese subjects (9 men and 10 women) took part in a 15-week drug-based
weight-loss program coupled to energy intake restriction. Body weight
and body composition were significantly decreased in men and women. Both
before and after the weight loss program, desire to eat, hunger, fullness
and prospective food consumption (PFC) were measured after an overnight
fast and at 10-min intervals in the hour following the ingestion of a
standardized breakfast. Energy intakes were also measured and reported
before and after weight loss.
Weight Loss Appetite Study Results
Fasting desire to eat and postprandial area under the curve (AUC) for
hunger were significantly increased after the intervention. No association
was observed between measured or reported energy intakes and appetite
ratings before weight loss in either men or women. Reported energy intake
was not associated with appetite sensations after weight loss either.
In contrast, measured energy intake was significantly associated with
postprandial AUC for fullness and PFC in men at the end of the program.
In stepwise multiple regression analysis, only postprandial AUC for PFC
contributed independently to the variance of measured energy intake after
weight loss.
Weight Loss Appetite Study Conclusion
This weight loss study did not show consistent associations between averaged
appetite ratings after a meal and daily energy intake, either before or
after weight loss.
Source: Eric Douceta, Sylvie St-Pierreb,
Natalie Almérasc and Angelo Tremblay a School of Human Kinetics,
University of Ottawa.
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